{"schemaVersion":3,"id":"CVE-2019-18852","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Certain D-Link devices have a hardcoded Alphanetworks user account with TELNET access because of /etc/config/image_sign or /etc/alpha_config/image_sign. This affects DIR-600 B1 V2.01 for WW, DIR-890L A1 v1.03, DIR-615 J1 v100 (for DCN), DIR-645 A1 v1.03, DIR-815 A1 v1.01, DIR-823 A1 v1.01, and DIR-842 C1 v3.00.","dates":{"published":"2019-11-11T13:42:47.000Z","modified":"2024-08-05T02:02:39.803Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":10,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":10,"severity":"high","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01611,"percentile":0.75614,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.01611},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01611,"percentile":0.75614}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01611,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01611,"percentile":0.75614}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"GITHUB_CHANDLERCHIN_DLINK_VULS","name":"Dlink Vuls","source":"github","url":"https://github.com/ChandlerChin/Dlink_vuls/blob/master/A%20hard%20coded%20telnet%20user%20was%20discovered%20in%20multiple%20Dlink%20routers.pdf","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-319","name":"Cleartext Transmission of Sensitive Information","description":"The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/319.html"}],"affected":[{"vendor":"dlink","product":"dir-600_b1_firmware","name":"dir-600 b1 firmware","label":"dir-600_b1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"2.01","noFixRecorded":false,"fixedIn":null}],"versionsText":"2.01","eol":null,"hubHref":"/vendor/dlink/dir-600_b1"},{"vendor":"dlink","product":"dir-615_j1_firmware","name":"dir-615 j1 firmware","label":"dir-615_j1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"100","noFixRecorded":false,"fixedIn":null}],"versionsText":"100","eol":null,"hubHref":"/vendor/dlink/dir-615_j1"},{"vendor":"dlink","product":"dir-645_a1_firmware","name":"dir-645 a1 firmware","label":"dir-645_a1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"1.03","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.03","eol":null,"hubHref":"/vendor/dlink/dir-645_a1"},{"vendor":"dlink","product":"dir-815_a1_firmware","name":"dir-815 a1 firmware","label":"dir-815_a1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"1.01","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.01","eol":null,"hubHref":"/vendor/dlink/dir-815_a1"},{"vendor":"dlink","product":"dir-823_a1_firmware","name":"dir-823 a1 firmware","label":"dir-823_a1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"1.01","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.01","eol":null,"hubHref":"/vendor/dlink/dir-823_a1"},{"vendor":"dlink","product":"dir-842_c1_firmware","name":"dir-842 c1 firmware","label":"dir-842_c1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"3.00","noFixRecorded":false,"fixedIn":null}],"versionsText":"3.00","eol":null,"hubHref":"/vendor/dlink/dir-842_c1"},{"vendor":"dlink","product":"dir-890l_a1_firmware","name":"dir-890l a1 firmware","label":"dir-890l_a1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"1.03","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.03","eol":null,"hubHref":"/vendor/dlink/dir-890l_a1"}],"affectedCount":7,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/ChandlerChin/Dlink_vuls/blob/master/A%20hard%20coded%20telnet%20user%20was%20discovered%20in%20multiple%20Dlink%20routers.pdf","label":"github.com/ChandlerChin/…","hostname":"github.com","tags":["X Refsource MISC","Exploit","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-11-11T13:42:47.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T02:02:39.803Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":90,"level":"critical","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T19:54:02.083Z","stale":false,"partial":false}}